A patient suddenly becomes pale and sweaty after an injection of 4ml of lidocaine 2% with epinephrine l:l00,000. The radial pulse is slow and steady. The respiration is slow. The blood pressure is 80/60. What is the most probable diagnosis?
Incipient syncope.
An impending adrenal insufficiency.
An allergic reaction to the local anesthetic.
A toxic reaction to epinephrine.
A toxic reaction to lidocaine.
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